Can-body-making machine.



0. J. JOHNSON.

GAN BODY MAKING MACHINE.

APPLIUATIOH FILED KAY 21. 1907. 971,278, yPatented sept. 27, 1910.

2 SHBETB-BHEBT 1.

C. J. JOHNSON.

CAN BODY MAKING MACHINE.

APPLIUATION FILED un 21, 1907.

Patentd SBp'G. 27, 1910.

2 SHEETS-SHEET 2.

Iig. Z.

fnl/anim,

win/asses OLIVER J. JOHNSON, 0F WHEELING, WEST VIRGINIA.

cnn-nonY-MKING MACHINE.

Specification of Letters Patent. 'P--dentd Slept. 27, 1910.

Y Application led May 21, 1907. Serial No. 874,910.

ZO alli-whew it may www. rt .know-n .that I, OLIVER J. JOHNSON, #i citizen .eff the United States, residin at ,in :the county of Ohio and tate fof Wasgyirginia, .have invented a new and .useful cvement in Can-Body-Maklng' Maehinesof Iwhich the ,following is a speciicatinn.

',lfhis invention relates 'more particularly lto improvements in that type v.of machine for .can bodies .exemplified in U. S. No. 183,188, granted to me Fehraiary 28, 190.5, in which the sheet metal 1.are v ca'lilied successively first to the which for-ms .the seam hooks on osite .edgesof ,the blank, and then .to

ya ,in anism, ,arranged in advance of the .hook forming .mechanism in the line of feed .Osf .theblanks which shapes .the blank around .a .or foam, and-interlocks the hooks and .completes lthe Joint. The improvements are .n0 t,' owever, as will beapparent from vtlns Sleccation, ,restricted in. application `to t is particular type .of machine. vIn machines of .the sort mentioned as ordinarily .operated the blanks are fed one at .a time to .3&1 intermittently Operating carrier and at each forward movement/the carrier delivers Aene blankl Ito the hook-.forming mechanism and .another .to .the body-forming mechanism, so thatoneyblank is operated upon in .each mechanism at the same time and one body is completed at each `Operation of the machine, or for each forward movement of wille?. t

The .primary object Yof this invention is to greatly ,increase the output ofl can body making machines, without materially adding ,to the cost of .manufacture and operation. thereof, b adapting the machine for completing@ urality of can bodies simul- .taneousl instead-of one at a time. A num- ?berofrblyanks mustbe fed .to the machine for eachnperation .equal lto the number of bodies .coml lated .at .911Go eration and thiscannot 'be one manually the machineisgnun so slowly .as to defeat the ,object of .the limlention. This object is -attamed in the machine herein .described by making each yof the mechanisms large encagh .to .operate u ontwo blanks simultaneously and provi. ing. automatic mecha- .niem -for feedingtwo blanks at 4a .time to the carrier, one in advancerof the other, or in 1tamem, whereh. at each forward move- .ment of the carrier two blanks are delivered in the several fi y one Operative unlessto the hook-forming mechanism and two other blanks to the body-forming mechanism. Thus the output of the machine is doubled when operated lat substantially the usual speed.

In the accompanying drawings, consisting of two sheets: Figure l is a fragmentary longitudinal sectional elevation of a can body machine embodying the invention. Fig. 2 is a plan view, partly in section, thereof. Fig. 3 is a transverse sectional elevation thereof, in line 3 3, F ig. l.

Like 4letters of reference refer to like parts res.

A represents t e hook-:formin mechanism .and B the body forming and t e lock seam finishing mechanism of a .can body makin machine. Thel particular construction .0% these mechanisms forms no part of this invention and it is sufficient for a complete understanding of this invention to say that they are arranged in tandem, or one 1n advance ,of the other, as re ards the direction of moyement 'of the blan s through the Inachne, and that they can be constructed as described in my said patent, or like any of the many wel known mechanisms employed for the purpose, except that each vI nechanism is .made long enou h in the direction of movement of the bmks to operate at the same time u on two blanks disposed .one in advance of ft e other.

C representsthe .intermittently ,moving carrier to which the blanks are fed, as hereinafter .described and which carries 'them to the `hook and body-forming mechanisms. A horizontally reciprocatin carrier is shown consisting of connected Sigi pivoted ogs c for engaging the opposite es bars having Sides of the blanks, and a central pivoted .ahle means not shown,

` are placed over the carrier C Theblenks X `in a suitahe holder E `fromwhich they are f -fed two ata time onto-the carrier, one in adaance o f .the other and each in front of a pair of Icarrier dogs. The blank holder ward eachl other and consist of shown consists of opposite parallel supporting bars or plates e e having oppositely inon edge in the holder in two stacks with the vside edges of the firstblanks of the stacks resting against retaining, fingers or lips f extending inwardly from the side walls of the holder bars e e at the front and rear ends of the holder.

One blank is taken from each stack at the same time and the two deposited simultaneously on the reciprocating carrier by suitable'y feed devices G and G. In the mechanism shown, these feed devices consist of vacuum cups attached to the lower ends of swin ing feed arms g g arran ed one in front o one stack of blanks and t e other'in rear of the other stack. The arms depend from horizontal shaftsg2 journaled in the uprights e2 i' and are operated by arms g3 on said shafts connected by links g4 to an arm g5 on a horizontal rock shaft g6 which is journaled in a bearing on the framebracket e2 and has another arm g7- connected in turn by a link gf to an arm gf on the rock shaft D which oper-4 ates the reciprocating carrier. The feed 'cups are connected to means (not shownz) o f ordinary or suitable construction where y the au' is exhausted from them when they are pressed against the blanks, so that when'the feed devices are moved awa from the stacks the two rst blanks will a here to the feed devices and be pulled thereby from between the retaining fingers of the blank holder.

H H representv two "blank chutes, ar-` ranged opposite to the-opposite ends of the hol blanks, and.which direct the .blanks o -A wardly onto the reciprocating carrier; The chutes preferably incline 'downwardly toparallel spaced side and intermediate rails attached at their upper ends to yokes or frames 7aV v whichl 'are adjustably secured to the upyso rights e2.; The chutes are suitably shapedto deposit the blanks geritlyron the carrier in proper position in lfront of adjacent pairs of the feed dogs. I represents two Swingin stops arranged between the lower ends'o the `chutes near the oppositel sides of the carrier, for reventing the blanks from sliding ast t e proper position on the car-l rier. T ese sto sare normall held in a central position y suitable lig springs a', vand can yieldto allow the forward movement of the rear blank beneath them with the carrier. The stops are more es ecially for preventing the rear blank, whic slides er, 4to which the `feed devices carr the.

'down the chute H in a forward direction,

from riding over the inclined rear edges of the carrier feed dogs onto the front blank.

The operation of the machine is as follows: The feed devices are swung toward and pressed against the first blanks of the stacks during the forward movement of the reciprocating carrier and these blanks cling to the feed devices and are pulled from the holder'in the return swing of the feed devices during the rearward movement of the carrier. As the feed devices swing between the rails of lthe chutes the blanks are arrested by strikin such rails and are stripped from the feed evices and slide down the chutes onto the carrier in front of adjacent pairs of the feed dogs thereof in time to be moved forward with the carrier at its next forward movement. Two blanks are thus fed to the carrier simultaneously rioi` to each forward movement thereof, an the travel of the carrier is suiiicient to move the two blanks into proper osition inthe hook forming mechanism an carry the preceding two blanks on the carrier from the hook forming mechanism into proper position in the body forming mechanism. Two blanks are operated upon by the hook-forming mechanism and two others by the body-l forming mechanism simultaneously prior to each .forward movement of the carrier so that two bodies are completed for each reciprocation of the carrier.

The mechanism described feeds the blanks I mechanism is em loyed and only one carrierV for moving the mechanisms.

lanks to and from these The machine, therefore, has

no more parts, Aexcepting the duplication of the feeding devlces, than a machine for i making one body at a time,7itbeing only necessary to lengthen the hook and bodyforming mechanisms and the stroke of Ithe carrier. Y

The invention is not restricted to the particularmechanisms emplo ed for operating upon the blanks, nor to t e construction of the feeding i mechanism, as other means couldbe em loyedA` for simultaneously feedlngl two blan s in tandem, or one in advance of thev other, to the mechanism for operating upon them;

Igclaim as m invention:i

1j In a can'- dy making machine, the combination of a movable conve er for the body blanks, mechanism for fee ing a plurality of blanks to said conveyer one in advance of the other with res ect to the direction of movement of sai conveyer, 'and means for operating said conveyer to carry rection of movement of said conve er to operate simultaneously on the plura ity of blanks, and to carry the blanks together away from said mechanism, substantially as set forth.

2. In a can-body making machine, the combination of a movable conveyer for the body blanks, mechanism for feeding a plurality of blanks to said conveyer one in advance of the other with respect to the direction of movement of said conveyer, and means for operating said conveyer to carry the blanks together to one after another of mechanisms which perform successive operations on the blanks and which are arranged in relatively fixed position one in advance of the other with respect to the direction of movement of the conveyer and each of which is of suiiicient length in the direction of movement of said conveyer to operate simultaneously on the plurality of blanks, substantially as set forth.

3. In a can-body making machine, the combination of a movable conveyer for the body blanks, mechanism for feeding a plu rality of blanks to said conveyer one in advance of the other with respect to the direction of movement of said conveyer, and means for operating` said conveyer to carry the blanks simultaneously first to an edging mechanism and then to a body forming mechanism, which mechanisms are arranged in relatively fixed position one in advance of the other with respect to the direction of movement of said conveyer and each of which is of sufficient length in the direction of movement of said conveyer to operate simultaneously on the plurality of blanks, substantially as set forth.

4. The combination of a movable conveyer for the blanks, a holder above said conveyer in which the blanks stand in planes transversely to the plane of movement of said conveyer, and means for feeding two blanks at the same time one from each end of said holder onto said conveyer, one in advance of the other, substantially as set forth.

tion of movement of said conveyer, and

means for feeding two blanks at the same time one from each stack downwardly toi ward each other onto said conveyer one in advance of the other, substantially as set forth.

6. The combination of a movable conveyer for the blanks, a holder above said conveyer in which the blanks` stand on edge in planes transverse to the plane of movement of said conveyer, feed devices at opposite ends of said holder for taking the blanks therefrom, and means for operating said feed devices to feed two blanks from said holder in opposite directions toward each other onto said conveyer one in advance of the' other, substantially as set forth.

7. The combination of a carrier for the blanks, a holder above said carrier in which the blanks are held transversely relative to the direction of movement of the carrier, feed devices atopposite ends of said holder for taking two blanks therefrom, and oppositely inclined chutes to which the feed devices deliver the blanks and which direct the blanks downwardly onto the carrier one inadvance of the other, substantially as set forth.

8. The combination of a movable conveyer for the blanks, a holder above said conveyer in which the blanks standon edge in planes transverse to the plane of movement of said conveyer, feed devices at opposite ends of said holder for taking the blanks therefrom, means for operating said feed devices to feed two blanks from said holder in opposite directions toward each other onto said conveyer one ih advance of the other, and a device for preventing one blank from overlapping the other on said conveyer, substantially as set forth.

lVitness my hand this 15th day of May, i

W. H. HEss, C. E. CLOVIS. 

